Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Voltage Pentode or Tetrode (under 100V) ·Pentode

CK5972

Pentode designed for radio-frequency or wide-band amplifier service in receiving or electronic equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5A
Socket code
-
Base pins
5
Nominal heater
1.25 V / 60 mA

Description

Subminiature directly heated pentode for RF amplifier service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5A
Socket code
-
Base pins
5
Nominal heater voltage
1.25 V
Nominal heater current
60 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5A - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
1000000 Ω
Transconductance
0.00115 S
Max plate voltage
67.5 V
Max screen voltage
67.5 V

Promoted only from clearly identified printed electrical values; additional values retained in TUBE_SECTION_PARAMETER.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

195X Raytheon Special Purpose Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    67.5 V

    RFAmplifier

  • Grid resistor

    2 MΩ

    RFAmplifier

  • Screen voltage

    67.5 V

    RFAmplifier

  • Plate current

    1.9 mA

    RFAmplifier

  • Screen current

    0.5 mA

    RFAmplifier

Characteristic

  • Plate resistance

    1 MΩ

    Section1

  • Transconductance

    1150 µS

    Section1